<template>
 <div class="wrapper">
  <swiper :options="swiperOption" v-if="showSwiper">
    <!-- slides -->
    <swiper-slide v-for="item of List" :key="item.id">
        <img class="swiper-img" :src="item.imgUrl">
    </swiper-slide>
    <!-- Optional controls -->
    <div class="swiper-pagination"  slot="pagination"></div>
  </swiper>
 </div>
</template>

<script>
export default {
  neme: 'HomeSwiper',
  props: {
    List: Array
  },
  data () {
    return {
      swiperOption: {
        pagination: '.swiper-pagination',
        loop: true
      }
    }
  },
  computed: {
    showSwiper () {
      return this.List.length
    }
  }
}
</script>

<style lang="stylus" scoped>
 .wrapper >>> .swiper-pagination-bullet-active
     background: #fff
 .wrapper
   width: 100%
   height: 31.25vw
   background: gray
   .swiper-img
     width: 100%
     height: 117px
</style>
